The Helos BTR Gen2 4-20x50mm is a precision tactical rifle scope featuring first focal plane (FFP) design with an illuminated APRS6 MIL reticle for enhanced accuracy and target engagement.Helos BTR (Tactical) Gen2 4-20x50mm rifle scopeFirst focal plane (FFP) with illuminated APRS6 MIL reticleVariable 4x to 20x magnification with 50mm objective lens30mm tube diameter with 24.9 oz weightPrecision 1/10 MIL click adjustments3.60" eye relief and 13.3" overall lengthCR-2032 battery powered illuminationBlack finish for tactical applicationsDesigned for tactical and precision shooting applications this scope delivers reliable performance with true MIL-based measurements that remain accurate across the entire magnification range.